﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace 属性
{
    class PhoneCustomer
    {
        private string _firstName;//私有字段
        public string FirstName //属性
        { 
            get 
            { 
                return _firstName;
            } 
            set 
            { 
                _firstName = value;
            }
        }
    }
}
